Subtract 70/7 from 3/9
1st number: 3/9, 2nd number: 10 0/7
3/9 - 70/7 is -29/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 7 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 9 × 7 = 63,
3/9 = 3 × 7/9 × 7 = 21/63 - Likewise, for the 2nd fraction, since 7 × 9 = 63,
70/7 = 70 × 9/7 × 9 = 630/63 - Subtract the two like fractions:
21/63 - 630/63 = 21 - 630/63 = -609/63 - After reducing the fraction, the answer is -29/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/9-70/7 3/18-70/7 3/9-70/14 3/27-70/7 3/9-70/21 15/9-70/7 3/45-70/7 3/9-70/35 21/9-70/7 3/63-70/7 3/9-70/49